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ASTM A1024 - A 1024M - 02 (2012).pdf

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ASTM A1024 - A 1024M - 02 (2012).pdf

Designation A1024/A1024M − 02 Reapproved 2012Standard Specification forSteel Line Pipe, Black, Plain-End, Seamless1This standard is issued under the fixed designation A1024/A1024M; the number immediately following the designation indicates theyear of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of lastreapproval. A superscript epsilon indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers seamless, black, plain-endsteel pipe for use in the conveyance of fluids under pressure.Pipe in sizes NPS 1 to 26, inclusive, as given in ASMEB36.10M is included. Pipe having other dimensions, in thissize range, may be furnished provided such pipe complies withall other requirements of this specification.1.2 It is intended that the pipe be capable of being circum-ferentially welded in the field when welding procedures inaccordance with the requirements of the applicable pipelineconstruction code are used.1.3 The values stated in either inch-pound units or in SIunits are to be regarded separately as standard. Within the text,the SI units are shown in brackets. The values in each systemare not exact equivalents; therefore, each system is to be usedindependently of the other.2. Referenced Documents2.1 ASTM Standards2A370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA450/A450M Specification for General Requirements forCarbon and Low Alloy Steel TubesA530/A530M Specification for General Requirements forSpecialized Carbon and Alloy Steel PipeA751 Test Methods, Practices, and Terminology for Chemi-cal Analysis of Steel ProductsA941 Terminology Relating to Steel, Stainless Steel, RelatedAlloys, and Ferroalloys2.2 API StandardAPI RP 5L3 Recommended Practice for Conducting Drop-Weight Tear Tests on Line Pipe32.3 ASME StandardASME B36.10M Welded and Seamless Wrought Steel Pipe43. Terminology3.1 DefinitionsFor terminology used in this specification,refer to Terminology A941.3.2 Definitions of Terms Specific to This Standard3.2.1 lot, na quantity of pipe of the same ordereddiameter, heat, wall thickness, and grade as given in Table 1.3.2.2 seamless pipe, na tubular product made without awelded seam; it is manufactured usually by hot working thematerial, and if necessary, by subsequently cold-finishing thehot worked tubular product to produce the desired shape,dimensions, and properties.3.2.3 specified outside diameter OD, n the outsidediameter specified in the purchase order or the outside diameterlisted inASME B36.10M for the nominal pipe size specified inthe purchase order.4. General Requirements4.1 Pipe furnished under this specification shall conform tothe applicable requirements of Specification A530/A530Munless otherwise provided herein.5. Ordering Information5.1 Information items to be considered, if appropriate, forinclusion in the purchase order are as follows5.1.1 Specification designation and year of issue,5.1.2 Quantity feet or metres,5.1.3 Grade see Table 2 and 8.1.5,5.1.4 Size either nominal NPS or outside diameter andwall thickness,5.1.5 Nominal length see 14.3,5.1.6 End finish plain-end beveled or special, see 15.1,5.1.7 Impact test temperature see 8.2.5,5.1.8 Heat treatment condition see 6.1,5.1.9 Carbon equivalent for over 0.800 in. [20.3 mm] wallthicknesses see 7.4,5.1.10 Reduced under thickness variation see Table 5,1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.09 on Carbon Steel Tubular Products.Current edition approved Sept. 1, 2012. Published November 2012. Originallyapproved in 2002. Last previous edition approved in 2007 as A1024/A1024M – 022007, DOI 10.1520/A1024_A1024M-02R12.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standard’s Document Summary page onthe ASTM website.3Available from American Petroleum Institute API, 1220 L. St., NW,Washington, DC 20005-4070, http//api-ec.api.org.4Available from American Society of Mechanical Engineers ASME, ASMEInternational Headquarters, Three Park Ave., New York, NY 10016-5990, http//www.asme.org.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1Copyright by ASTM Intl all rights reserved;5.1.11 Special requirements,5.1.12 Supplementary requirements, and5.1.13 Bar coding see 18.3.6. Manufacture6.1 Pipe shall be manufactured by the seamless process.Unless a specific heat treatment condition is specified in thepurchase order, pipe shall be furnished in the as-rolled,normalized, normalized and tempered, or quenched and tem-pered condition.7. Chemical Composition7.1 The steel for any grade, by heat and product analyses,shall contain no more than 0.24 carbon, 0.015 sulfur, and0.025 phosphorus.7.2 The steel shall contain no more than 0.0007 boron, byheat analysis.7.3 For pipe with a specified wall thickness less than orequal to 0.800 in. [20.3 mm], the carbon equivalent CE shallnot exceed 0.43 , calculated from the product analysis usingthe following equationCE 5 C1F Mn/61Si/241Cu/151Ni/201Cr1Mo1V1Cb/51whereF a compliance factor that is dependent on the carboncontent as shown belowCarbonContent, FCarbonContent, F0.21 1.000.13 0.800.14 0.857.4 For pipe with a specified wall thickness greater than0.800 in. [20.3 mm], the carbon equivalent CE shall be asspecified in the purchase order.7.5 A heat analysis shall be made for each heat of steelfurnished under this specification. All pipe shall be markedwith either a heat number or heat code in accordance with 18.1and 18.2.7.6 Product analyses shall be made on at least two samplesfrom each heat of steel.7.7 All analyses shall be in accordance with Test Methods,Practices, and Terminology A751, and shall include all ele-ments required in the carbon equivalent equation of 7.3,inaddition to titanium, phosphorus, sulfur, and boron, except thatthe product analysis for boron is not required. Titanium isreported for information only and is not a cause for rejection.7.8 If one or both of the product analyses representing a heatfail to conform to the specified requirements, the heat shall berejected, or analyses shall be made on double the originalnumber of test samples that failed, each of which shall conformto the specified requirements.8. Mechanical Properties8.1 Tension Test8.1.1 The material shall conform to the tensile requirementsgiven in Table 2 and 8.1.6. The yield strength maxima applyonly to pipe NPS 8 and larger.8.1.2 The yield strength corresponding to a total extensionunder load of 0.5 of the gage length shall be determined.8.1.3 Transverse tension tests shall be performed on pipeNPS 8 and larger, or longitudinal, subject to approval byTABLE 1 Lot Size and Sample Size for Mechanical andToughness TestingPipe Size Lot Size Sample SizeNPS 12 100 lengths 1TABLE 2 Tensile RequirementsGrade Yield Strength,Min.Yield Strength,AMax.Tensile Strength,Min.psi MPa psi MPa psi MPa35 35 000 240 65 000 450 60 000 41550 50 000 345 77 000 530 70 000 48560 60 000 415 80 000 550 75 000 51570 70 000 485 87 000 600 80 000 55080 80 000 550 97 000 670 90 000 620ASee 8.1.1.TABLE 3 Hydrostatic Test PressureNPSDesignatorSpecified ODin. [mm]Specified WallThicknessin. [mm]Test Pressure,Min.psi [kPa]1 1.315 [33.4] 0.133 [3.4] 700 [4800]0.179 [4.6] 850 [5900]0.250 [6.4] 950 [6600]0.358 [9.1] 1000 [6900]11⁄4 1.660 [42.2] 0.140 [3.6] 1300 [9000]0.191 [4.9] 1900 [13 100]0.250 [6.4] 2000 [13 800]0.382 [9.7] 2300 [15 900]11⁄2 1.900 [48.3] 0.145 [3.7] 1300 [9000]0.200 [5.1] 1900 [13 100]0.281 [7.1] 2000 [13 800]0.400 [10.2] 2300 [15 900]TABLE 4 Acceptance LimitsType of NotchAcceptance LimitSignal, Parallel Sided Notch 100Drilled Hole 100TABLE 5 Permissible Variations in Wall ThicknessNPS DesignatorPermissible Variations fromSpecified Wall Thickness,AOver Under1to21⁄2, incl. 20.0 10.03 and larger 15.0 10.0AIf a reduced under thickness variation is specified in the purchase order, it ispermissible for the over thickness variation to be increased, provided that theapplicable total tolerance range in percent is not increased.A1024/A1024M − 02 20122Copyright by ASTM Intl all rights reserved;purchaser. Transverse test specimens shall be either strip testspecimens or round bar test specimens, at the option of themanufacturer. All transverse strip test specimens shall beapproximately 11⁄2 in. [38 mm] wide in the gage length andeach shall represent the full wall thickness of the pipe fromwhich the test specimen was cut.8.1.4 Longitudinal tension tests shall be performed on pipesmaller than NPS 8. Longitudinal test specimens shall be eitherstrip test specimens, full-size test specimens, or round bar testspecimens, at the option of the manufacturer.8.1.5 Grades intermediate to those given in Table 2 shall befurnished if so specified in the purchase order. For intermediategrades, the difference between the specified maximum yieldstrength and the specified minimum yield strength and thedifference between the specified minimum tensile strength andthe specified minimum yield strength shall be as given in Table2 for the next higher listed grade.8.1.6 For each grade, the minimum elongation in 2 in. [50mm] shall be as determined by the following equatione 5 C A0.2/U0.9 2wheree minimum elongation in percent, rounded to the nearestpercent,C constant 625 000 [1940],A the lesser of 0.75 in.2[485 mm2] and the cross-sectional area of the tension test specimen in in.2[mm2], based upon the specified outside diameter of thepipe or the nominal width of the tension test specimenand the specified wall thickness, rounded to the nearest0.01 in.2[1 mm2],U specified minimum tensile strength, psi [MPa].8.2 Impact Test8.2.1 Except as allowed by 8.2.2, pipe shall be CharpyV-notch tested in accordance with Test Methods and Defini-tions A370. For pipe smaller than NPS 5, such test specimensshall be taken longitudinal to the pipe axis. For pipe NPS 5 andlarger, the test specimens shall be taken transverse to the pipeaxis.8.2.2 The basic test specimen is full size Charpy V-notch.Where full size test specimens, either conventional or contain-ing the original OD surface, cannot be obtained due to acombination of specified outside diameter and specified wallthickness, two-thirds size or half-size test specimens shall beused. Where combinations of specified outside diameter andspecified wall thickness do not permit half-size test specimensto be obtained, there is no requirement for impact testing. In allcases, the largest possible test specimen size shall be used,except where such a test specimen size will result in absorbedenergy values greater than 80 of the testing machinecapacity.8.2.3 When subsize test specimens are used, the require-ments for absorbed energy shall be the adjusted values ob-tained by the following relationships, with the calculatedvalues rounded to the nearest foot pound-force [joule]For 2/3 sizeN 5 R 30.67 3For 1/2 sizeN 5 R 30.50whereN adjusted value, ftlbf [J], andR value required by 8.2.4.8.2.4 For pipe NPS 5 through NPS 26, the absorbed energyrequirement for full size test specimens shall be 20 ftlbf [27 J].For pipe smaller than NPS 5, the absorbed energy requirementfor full size test specimens shall be 30 ftlbf [40 J].8.2.5 Charpy impact testing shall be performed at 32F[0C], unless a lower test temperature is specified in thepurchase order.9. Hydrostatic Test9.1 Each length of pipe shall be subjected to the hydrostatictest without leakage through the wall.9.2 Each length of pipe NPS 2 or larger shall be tested, bythe manufacturer, to a minimum hydrostatic pressure calcu-lated from the following relationshipInch 2 Pound UnitsP 5 2 St/D 3C 4SI UnitsP 5 2000 St/D 3CwhereS specified minimum yield strength, psi [MPa],t specified wall thickness, in. [mm],D specified outside diameter, in. [mm],C 0.60 for pipe NPS 2 through NPS 5,0.75 for pipe larger than NPS 5 through NPS 8,0.85 for pipe larger than NPS 8 through NPS 18,0.90 for pipe larger than NPS 18, andP minimum hydrostatic test pressure, psi [kPa].9.3 For pipe sizes smaller than NPS 2, the test pressuresgiven in Table 3 are arbitrary. For pipe in sizes smaller thanNPS 2 with specified wall thicknesses lighter than those listed,the test pressure for the next heavier listed specified wallthickness shall be used. For intermediate specified outsidediameters for pipe sizes smaller than NPS 2, the test pressuresgiven for the next smaller specified outside diameter shall beused.9.4 When computed test pressures are not an exact multipleof 10 psi [100 kPa], they shall be rounded to the nearest 10 psi[100 kPa].9.5 The minimum hydrostatic test pressure required tosatisfy these requirements need not exceed 3000 psi [20 700kPa]. This does not prohibit testing at a higher pressure at themanufacturer’s option. The hydrostatic test pressure shall bemaintained for not less than 5 s for all pipe sizes.10. Nondestructive Electric Test10.1 The entire outside surface of each pipe shall beinspected full length for longitudinal defects by either magneticparticle inspection, ultrasonic inspection, electromagneticinspection, or a combination thereof. The location of theequipment in the mill shall be at the discretion of themanufacturer; however, the nondestructive inspection shalltake place after all heat treating and expansion operations, ifperformed, but may take place before cropping, beveling, andend sizing.A1024/A1024M − 02 20123Copyright by ASTM Intl all rights reserved;10.2 Magnetic Particle InspectionThe depth of all imper-fections revealed by magnetic particle inspection shall bedetermined; and when found to be greater than 10 of thespecified wall thickness, the imperfection shall be considered adefect.10.3 Ultrasonic and Electromagnetic InspectionAnyequipment utilizing the ultrasonic or electromagnetic principlesand capable of continuous and uninterrupted inspection shallbe used. The equipment shall be checked with an applicablereference standard as described in 10.4 at least once every 8 hof inspection to demonstrate the effectiveness of the inspectionprocedures. The equipment shall be adjusted to producewell-defined indications when the reference standard isscanned by the inspection unit in a manner simulating theinspection of the product.10.4 Reference StandardsReference standards shall haveboth outside diameter and wall thickness within the tolerancesspecified for the production pipe to be inspected, and may be ofany convenient length as determined by the pipe manufacturer.For ultrasonic inspection, the reference standard shall contain amachined notch as shown in Fig. 1. For electromagneticinspection, the reference standa

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